It’s almost time to say goodbye to David Letterman, but first it’s time to say sayonara to Tina Fey’s dress.

In honor of Letterman’s impending retirement, Fey vowed to never wear a fancy dress on a talk show again, and then she proved it by stripping down to her Spanx on national television.

“What? Am I gonna put a dress on for Jimmy? That’s creepy. He’s like my brother,” said Fey, “I’m gonna wear like special underwear for James Corden? That’s not gonna happen.”

Letterman, however, is worth wearing special guchies for. After stripping off her dress, Fey’s undergarments revealed a message saying “Bye Dave” and “#Last Dress Ever.”

Enjoy the craziness while you can America, because as Fey says, the next time you see her she’ll be “playing charades in a Slanket.”

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